Calcius



G. E. COX.

APPARATUS FOR MAKING CALCIUM CYANAMID.

APPLICATION FILED FEB-28.1919.

Patented Oct. 7. 19193 3 SHEETS-SHEET L v GrE. cox. APPARATUS FOR MAKINGCALCIUM' CYANAMID.

APPLICATION FILED FEB- 28,1919.

1,31%756. I Patented 0ct.'7 ,1919.

3 SH EETS-SHEE T 2.

amvawlioz GEO/ye @0 2 4 G. E. COX.

APPARATUS FOR MAKING CALCIUM .CYANAMID.

;APPLICATION FILED FEB. '28, 1919.

Patented Oct. 7, 1919.

3 SHEETSSHEET 3.

Suva wf-oz Geo/yet: (Tax, 53

arrans'rns eon MAKING Cameron;

Specification of Letters Patent. l a'tigntted @0139 7, 1919.,

Application. filed February 28, 1919. Serial no. eraser.

1i?" '9 iL"]i.-?R- it may concern: 5e it. known that I. GEORGE E. Cox, a of the United States, residing at N1- again Falls, in the county of Niagara and State of Xew York, have invented certain w and useful Improvements in Apparatus flier Making Calcium Cyan-amid; and I do hereby declare the following to bea full, clear and exact description of the invention, such as will enable others skilled in the art ti;- which it appertains to make and use the Selim This invention relates to an apparatus for facilitating the handling and consump "tion materials entering into the manultacture of commercial calcitnn cyanamid,

and has for its object to accomplish these results in a snnple and more efiicient manner han has been heretofore proposed.

To these ends the invention consists in the novel parts and combinations of parts constituting the apparatus, all as willbe more fully hereinafter disclosed and particularly pointed out in the'clan'ns.

Referring to the accompanying drawlngs,

lea-min; apart of this specification in which like numerals designate like parts in all the YlQWS- Figure l is a side elevational view partly in section ofan apparatus made in accordance with this invention;

Fig.2 is'ian end elevationalview partially broken away, of a portion of the parts shown in Fig. 1;

Fig.3.is in Fig.

Fig. 4 is partially sectional detail View of a portion of the parts shown in Fig. 1. In. order that the precise invention may be the mere clearly understood. it is said':. In my U; S. Patent #1382381, dated (lot. 22, 1918, entitled method of making calcium cyanamid, I have disclosed an improved process of making commercial calcium, cyanamid wherein finely divided calcium carbid is charged into a suitable c0ntainer, while the latter is in place in the cyanamid oven. and then this said'mass of charged carbid is heated to a requisite temper-attire in the presence of nitrogen to form the desired calcium cyananiid.

Inthis application, on the other hand, I ain disclosing and claiming an apparatus which makes commercially possible the car- ;plan View of the parts shown rying out on a large scale of the process disclosed in the above mentioned U. S. pat-- cut. It is well known that in the production I of cyanamid on a large scale, there is involved the use of a munber of individual containers or ovens for reacting on the carbidv with 'nitrogenl The economic efiiciency and capacity of any single cyanamid oven is limited to a comparatively few thousand pounds, or less as carbid, while the period of nitrification often runs from one to four, or more days, d riding upon the size of the ovens.

As a result the cyananiid plant. if it is to have a 1 v large output. must be equippedwith a c parativ-ely large number of ovensreach e3? which is usually a duplicate of the other, and they are generally regularlyarranged apart. v

The filling of this large number of ovens each with its car-bid container in place. is at present rendered possible through the use of an overhead crane. but in view of. the number of ovens in a large plant. as well as in view of the fact that the overhead crane must also handle the finished cyanamid. I have found it a decided. improvement to use an independent system of oven charging'. and an apparatus for such purpose. as is more full diz-sclosed below. constitutes an important.part oi said system.

Referring now to the drawings disclosing such an a paratus. 1 indicates the surface and beneath which the i. and 3 indicates suitable i the wheels l of a suitable framework roll The framework 5 in fact constitutes a car on which is supported a plurality of containers such as G, 7, 8 and 9. It is. of con dent that these containers reed not be lit fl to four in number, but the car may support a lesser or greater number if desired. provided they are so spaced as to register, with the fixed ovens such as 2 that they will charge. The car itself is propelled through the medium of a motor 10 which operates the pinion 11 meshing.

the wheels 4.

in rows equally spaced vided with a bevel gear meshing with the bevel gear 21, carried by the shaft22,

provided with the bevel gear 23, meshing M'ltl] thebevel gear 24, carried by. the axle 25 of another one'iof the wheels4. It thus results that a pairof wheels on opposite sides of'the car are positively actuated by ings. i

A brake 26 actuated by the hand lever 27, controls the rotation of theshaft 13, and therefore, the speed of the car. In fact, said brake enables one to stop the car and hold it fixed at any point of its travel. Containers 6, 7, 8 and 9 ar'e preferably of a cylindrical foilm, but of course, may be of anyother form and are also preferably of an air tight construction with an open top. 5

They are closed-at the bottom as by the bells such as 30 and'31. Each of the 'bells the motor 10 as will be clear from the 'draw- .10, F

is supported or sustained by the, rod like member 32 which in turn is secured to a guide 33 which slides inside the containers,

a wiH be clear .from Fig. The container 6, as well as each-of the other containers are provided with oppositely disposed lugs 34, see Fig. 4, only one of which is, shown in Fig. 1, and resting/01K these lugsare I springs 35 coacting with extensions 36 of the bell-cranks 37. The said bell cranks or dogs37 are adapted to be tipped outward yon their-pivots 38 in order to release cer presently appear. s

tain portions of the mechanism as will Secured to. the guides 33, in each ofthe containers, are the rods 39 and 40, as best illustrated in Fig. 4, and these said rods are provided with the lugs 41 and 42. To said rods'39 and are respectively-secured the flexible cables 43 and 44., The cables 43 pass over the pulleys 45 secured in the upper frame work 46, and the cables 44 pass over the pulleys 47 likewise secured in said frame work 46. Both'of the cables 43 and 44 passover appropriate pulleys 48 secured in said frame work 46, and down under appropriate pulleys 49, fastened to the cross heads 50 Whichare integral with nuts 51 threaded on the screw rods 52, all as will beclear from the drawings, it being understood that only one I complete mechanism of this kind isfully illustrated in connection with container 6.

Referring especially to the container 6,

7 its screw 52 at'its lower end carries the bevel .the standard of. bracket 58.

gear 53 meshing withthe bevel pinion 54 and associated with said pinion 54 is the slide or clutch like member 55, controlled by the hand lever56, pivoted as at 57 in 59 represents a motor provided with the pinion'60 meshingw'ith the gear. 61 carriegl by the shaft 62 on which is mounted the rive bevel gear 65. Around the said pulley 65 passes both of the cables 43 and 44, and in fact the en tire mechanism associated with the container:

7 is a duplicate of the mechanism associcomplete mechanism of one of the contain;-v ers 6. But, of course, each of the other 0011- ated with the container 6 as above stated. The same remarks'apply to each of the other containers such as 8 and 9.

In fact, it 'is' repeated that foi' f ithesalce of clcarness, and to prevent i innece:-. :aryduplication, I have only fully illustrated a 1 tainers constitutes an independent unit and in all respects a duplicate of said container 6,

and its associated mechanism. 1 In order that the power may be'distributed from the motor 59 to each of the containers, the gear 6'1 meshes with another gear 67 carried by a-shaft (is in all respects a duplicate of the shaft 62. propriate mechanism, which is a --:lup'licate of that associated "with shaft'62 distributes power to pulleys'not shown, but similar This said shaft 68' through apto the pulley 49 and which are respectigrfilyf associated with the other containers'such as 8 and 9, all as will be clear fro Fig; 3.

A. suitable brake 70, located v.o 62, controls the power from then tor 5,9 and apair of stops 71 best shown iii-Fig. l'gfurther controls the power from motor 59 as will presently appear. Around each container is a frame 7 2 only one being shown in connection with container 6, and during the descentof each container their stops 34 take 'against their appropriate frames 72 and thus limit'the downwardmovement or each container. 1

It should be repeated that the containers such as 6, 7, 8 and 9. carried by the car are so located and disposed that. they will accul he shaft rately register with their, appropriate 'JYGDS such as 2, which are sunk beneath the floor 1, and whose upper surfaces are preferably flush with said floor 1. r

The operation of the device will be clear from theforegoing, but may be briefly summarized as follows i The operator, through themotor 10 runs the whole carriage to his filling station, not shown, where one or more of the containers 6, 7, 8 and 9 will receive their charge of finely ground carbid. The containers wlienl ci1ig charged are in their uppermost pos t-ions, as

indicated in Fig. 1, and afteihha ving been properly charged the car or carriage is then run by the said motor 10.to the ovens2 which are awaiting charg ng, and said conitainers by said motor and brake mecha I nism, are accurately suspendedover those oVensWhich have been selected forfiiling.

These ovens-are presumed to have received their combustible containers as indicated in my prior patent, above mentioned, and are supposed to beawaiting the charge of. the carbid. The operator then, by means of the motor-59 and clutch mechanism 55, associated with each container revolves a screw I of the particular container he wishes to empty in such a direction as to raise its corresponding pulley 49 and to thus lower the said particular container, as is indicated in dotted linesin Fig. 1, for example. This lowering continues until the lugs 34 of' the container in question rest upon the corresponding frame 72, whereupon the container can go nofarther.

A continued rotation of the appropriate screw 52 however has the effect of dropping bell 30 are lifted but the bellwill remain open duringthis lifting action. The charge of carbid will slide out of the container into the oven by .about t'he'time the lowerend of the container leaves the "upper end of the oven. 7 When the lifting of thecontainer hasproceeded until the lugs 42 have struck their stop 71, said lugs will move" inward from said stops 71 thereby placing the rods 39 and 40 inward, and forcing-the said lugs 41 out of contact with their appropriate dogs The forcing of said lugs 41 out of contact with the dogs 37 will permit'the container in question to drop a short distance or down to the bell 30. whereupon the hoisting of the container will continue until the latter rises to its normal position with the lugs l1 in conta t. with the stops 71, or until a suitable limits-witch. not shown. comes into operation and stops the motor 59. as that above disclosed is carried out in connection with eachof the containers which register over an oven to be charged, and when they have been returned to their normalpositions. in the manner just disclosed. the said containers are ready for recharging.

It is obvious that those skilled in the art may vary the details of construction, as well as the arrangement of parts without depart; in g from the spirit of the invention, and

The same operation by the claims.

5 above disclosure except as may requir d What I claim is pp t sforcha-rg' ng a.cyanamid oven with finely divided carbid, the

combination of a supporting frame; means.

for propelling-said frame;.-a container for holding: finely divided carbid carried by said.-

frame; means for causing said'container register. with said cyanamid oven; means for raising and lowering said container rela' v tively to said frame; a' closure for said container; and means for-raising and lowering said closure relative-1y toand outside of said container to discharge the contentsof said container into 'saidoven, subst'antiallyas described. v v f '2. In an apparatus for charging a plurality of cyanamid' ovens with finelfv divided carbid, the combination of a supporting frame Work; a pluralit of containers for s said carbid so located on said framework as to register withapluralit) of said ovens.

when standing over the same;'nieans-'for lowering. said containers intoflsaid ovens; and means comprising-movable rods and cablesfor discharging said carbid from said containers into said ovens, substantially as described. r 3.1n an apparatus for-charging a .phn

'rality ofcyanamid ovens with finely divided carbid,- the combination of. a "supporting-,-.- frame work; a. plurality of containers forsaid carbid so located on said frame work' toregister-with a pluralityof sa-i when standing over. the same 3 mean movi said frame work into s h p 5 tion t at said containers will reg said ovens; means for lowering said con- "tainers into saidovens; meanscomprising."

' closures, movable rods and cables for operating said closures for discharging said carbid.

from said containers, into" said ovens and;

.means for raising saidcontainers out of said. ovens,- substantially as described.

s for charging a xplu? rality of c-'a namid ovens withfin'ely divided.

. 4. In an apparat carbid, thecombination of a car ;a track for along said track a plurality. of, vertically disposed containersflfor said carbid so 10- said car; a motor for propelling :said :car

cated on said car as to register with said ovens when standing over the same; means.

comprising vertically disposed I rods cables and closures 'for closing the lower'endsofsaid. containers; means for lowering said containers and closing means into said ovens; and meansifor opening theflowe r" ends of saidcontainers after enter ng said ovens. substantially as described. I 5. In an apparatus for charging a plurality of cyanamid ovens with finely divided carbid. the combinationof a car; a track for said car: a motor. for propelling said car' 65 therefore, I do not wish to be limited to the along said track; a plurality of vertically .disposed containers'for said carbidso located on said car as .toregister with said ovens when standing overthe same; means comprising a bell shaped member for closing the lower ends of said containers; means comprising a motor and screw for lowering said containers .and closing means into said scribed.

6. In an apparatus for chargingfinely divided carbid into a cyanamid oven the combination of a containerfor said earbid 0 en at one end; a closure for the other end 0 said cpntainer; a rod extending from said closure inside said container, toward its open end; a guide carried by said'rod on the in side of said container; a pair of rods at-' tached to said guide; and, a hoisting cable attached to each rod, substantially as de-' scribed.

7 In an apparatus i said container; a rod extending from said osure inside said container-toward its open .end; a guide carried by said 'rod onthe in- "side of said container; a pair of rods attached to said guide; a hoisting cable attached to each rod; .meansffor raising and lowering said closure and container by means of said hoisting cables; and means -to limit the descent of said container.

SJIn an apparatus for charging "finely divided carbid. 'intoa cyanamid oven the 'combination of a container for'sai'd carbid Y en atone end; a closure for the other end :3 a guide carried bysaid rod onthe in- "side of said container; a pair of rods atinched to saidguide; a hoisting cable at- "tached'to each rod; means for rai'slng and lowering said closure and container by means' of hoisting cables; means to limit the foragcharging finely divided. carbid .into .a cyanamid oven the combination of a container *for'said carbid penat one end; a closure for the other end said container; a rod extending from said sure lIlSlde said COIltBJIlBI toward its open descent of said container; stops carried on 50.

said rods; and dogs, and stops coasting with said first named stops whereby. said. con-'- ',tainer may fall a limited distance inde-. pendent-1y of said closure and qsa-id'closure mayrise a. limited distance independently of 55 said container, substantially asdescribed.

9. In an apparatus for charging finely divided clarbid into'a cyanamid oven, the combination of acontainer .for holding-the said carbid; ;a bell closure for said con- 69 tainer'ja rod like meansconnected-with said bell closure provided with stops; a dog like means carried by said container coacting with said stops; a supporting frame; stop like means carried by said frame also coact- '65 ing with said first named stops;,cable means connected to said rod like means; hoisting means for actuating 'sai'd lcabl'e means; a

- limiting stop carried by'said. container for limiting-fits. downward movement and a limiting stop carried said supporting frame for coacting with said first named limiting stop, substantially as described.

10'. In an apparatus for charging finely divided carbid'into a cyanamid oven, the combination of a container for holding the said carbid; a bell closure for said container a rod like means connected with said bell closures provided with stops; a dog like means carried by said containerpcoacting with saidstops; a supporting frame; stop like means carried by. said frame also coacting with said first named-stops; cable means connected to said rod like means; hoisting means for actuating said cable means; a limiting stop carried by said container for limiting the downward movement; alimiting stop carried by said supporting frame for coastingwith said'first named limiting stop; and means. comprising a motor and track for, moving said frame and container oversaid oven, substantially as described.

In testimony .whereof I aflix my signature in presence of two witnesses.

GEORGE E; COX.

Witnesses: v

ISABEL M. CONNELLY, E. L. FRENCH. 

